Teams have always tried to steal other teams' signs. Some even suggest that Bobby Thompson got information from some spy with binoculars in the Polo Grounds centerfield clubhouse. The technology has improved since them. Let them play.
ML/NJ
It was confirmed Bobby Thompson and the Giants did steal signs that summer.
Stealing signs on the field is as old as baseball, however there is a big difference between that and employing all kinds of technology.
What’s next, bugging the opposing team’s dugout? Or in the NFL, hack the opposing team’s headsets radio frequencies?
As a fan of horse racing what do you think about 30+ horses dying at Los Alamitos during the past twelve months ?
Stealing signs is not against the rules as long as it isn't done by artificial means (i.e., camera, binoculars, technology). Batters and runners on second base have been known to steal signals. However, there is an unwritten rule that states if a player is caught stealing signs, someone on his team is going to get beaned with a fastball.